Method for laying cable in cable conduit of ship main deck

Abstract

The invention discloses a method for laying a cable in a ship main deck cable tube, which comprises the following steps of: (1) through preparation work, enabling a steel wire rope to form a closed loop inside and outside the main deck cable tube, and sleeving the steel wire rope on a roller of a winch in a slipknot form, so as to make preparation for subsequent circulating cable pulling; (2) sleeving the end part of the cable with a steel wire mesh cover, and connecting the cable with the steel wire rope through the steel wire mesh cover; and (3) starting the winch, slowly pulling the steel wire rope to make the steel wire rope circularly move in an annular manner, and driving the cable to sequentially penetrate through the corresponding sections of the main deck cable pipe and the cable expansion box from the front wall side of the residential area to the water hand long room side through the steel wire rope so as to complete cable laying in the ship main deck cable pipe. According to the method, the light plastic bag is blown by compressed air, the steel wire rope penetrates through the ship main deck cable pipe through the traction rope to form a closed loop, and the closed loop is dragged by the winch, so that cable laying in the ship main deck cable pipe is realized, and the operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ship cable outfitting, and in particular to a method for laying cables in a cable pipe on a main deck of a ship. Background Art

[0002] On ships, cables need to be laid from the living area and engine room to the boatswain's room. The cables laid from the living area and engine room to the boatswain's room need to pass through the main deck cable pipe along the length of the ship. This distance is relatively long. Considering the pulling of the cables by the expansion and contraction of the hull, it is necessary to set a cable expansion box at intervals on the main deck of the ship, and make each cable expansion box connected to the main deck cable pipe of the corresponding section. Taking an ordinary bulk carrier as an example, the cable pipe distance between every two cable expansion boxes is about 30 meters, and the main deck cable pipe is horizontal. Due to the large number of cables, the cable laying operation is more difficult. Therefore, the above problems need to be solved urgently. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a method for laying cables in a cable pipe on the main deck of a ship. The method adopts a method of blowing a lightweight plastic bag with compressed air, and a steel wire rope is passed through the cable pipe on the main deck of the ship to form a closed loop through a traction rope, and is pulled by a winch, thereby realizing the cable laying in the cable pipe on the main deck of the ship, improving the operating efficiency, and reducing the operating burden of on-site staff.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A cable laying method in a cable pipe on the main deck of a ship of the present invention has the following innovative points: a main deck cable pipe is horizontally arranged along the length direction of the ship between the front wall of the living area and the boatswain's room on the main deck of the ship arranged horizontally and transversely, and cable expansion boxes are also arranged on the main deck cable pipe at equal intervals in sequence along its length direction, thereby dividing the main deck cable pipe into several sections arranged horizontally and coaxially, and the cable expansion box is used to reduce the pulling effect of the expansion and contraction of the hull on the cable; The cable laying method includes the following steps: (1) Through preparatory work, the steel wire rope forms a closed loop inside and outside the main deck cable tube, and is connected to the drum of the winch in the form of a slipknot, in preparation for the subsequent circular cable pulling; (2) Put a wire mesh cover on the end of the cable and connect the cable to the wire rope through the wire mesh cover; (3) Start the winch and slowly pull the wire rope to make it move in a circular motion. The wire rope drives the cable from the front wall of the living area toward the boatswain's room through the corresponding sections of the main deck cable duct and cable expansion box, thereby completing the cable laying in the main deck cable duct of the ship.

[0005] Preferably, in the above step (1), the preparation work for making the steel wire rope form a closed loop in the cable tube is specifically as follows: (1.1) First, connect one end of the traction rope to a lightweight plastic bag; (1.2) Then put the lightweight plastic bag into one end of the cable conduit of the corresponding section of the main deck near the front wall of the accommodation area; (1.3) Then use compressed air to blow the lightweight plastic bag toward the other end of the corresponding section of the main deck cable pipe, and use the lightweight plastic bag to drive the traction rope from one end of the corresponding section of the main deck cable pipe to the other end; (1.4) Then connect the steel wire rope to the other end of the traction rope, and then pull one end of the traction rope to pass the steel wire rope through the corresponding section of the main deck cable pipe and move it to the corresponding cable expansion box; (1.5) Then untie the connection between the steel wire rope and the traction rope, and put the lightweight plastic bag into one end of the next section of the main deck cable pipe; repeat the above steps (1.3) and (1.4), passing the steel wire rope through each section of the main deck cable pipe one by one, until the steel wire rope passes through the corresponding section of the main deck cable pipe on the side of the boatswain's room; (1.6) The winch base is then welded and fixed on the main deck of the ship at the front side of the main deck cable pipe, and pulleys matching the wire rope are also symmetrically arranged horizontally at the front side of the corresponding section of the main deck cable pipe near the front wall of the living area and the corresponding section of the main deck cable pipe near the boatswain's room, and it is ensured that the front ends of the two pulleys near the front side are arranged in a straight line with the drum of the winch along the length of the ship; (1.7) Then release the connection between the wire rope and the traction rope, pass the two ends of the wire rope around the corresponding two pulleys in turn, and then connect the two ends of the wire rope together through the cooperation of the shackle and the universal wheel, and put the wire rope on the drum of the winch in the form of a slipknot, so that the wire rope forms a closed loop inside and outside the main deck cable tube, and under the drive of the winch, the wire rope moves in a circular shape.

[0006] Preferably, in the above step (1.1), in addition to the lightweight plastic bag, one end of the traction rope may be connected to a small parachute.

[0007] Preferably, in the above step (1.3), the length of the traction rope needs to be greater than the length of each section of the main deck cable pipe.

[0008] Preferably, in the above step (1.6), the fixed ends of the two pulleys on the side of the front wall of the living area are fixedly installed on the front wall of the living area, and the fixed ends of the two pulleys on the side of the boatswain's room are fixedly installed on the pillar or hatch coaming behind the cable box of the boatswain's room.

[0009] Preferably, in the above step (3), a lubricant is applied to the outer sheath of the cable before the winch is started, thereby avoiding wear due to friction between the already laid cable and the currently laid cable as the cable moves along with the wire rope in the main deck cable conduit.

[0010] Preferably, in the above step (3), before the winch is started, two smooth iron rods are installed at the head and tail of each cable expansion box respectively, and each of the iron rods is located between the steel wire rope and the cable, so that the cable and the steel wire rope are separated in the cable expansion box by the iron rods to prevent the cable and the steel wire rope from being twisted.

[0011] Preferably, in the above step (3), a mark is made on the currently laid cable, and when the cable is laid to the front wall of the residential area at the mark, the winch stops working immediately, thereby preventing the cable from being pulled out too long or not enough.

[0012] Preferably, in the above step (3), four capillary tubes are sequentially and spaced in parallel in each cable expansion box, wherein the two capillary tubes on both sides are arranged above the lower edge of the corresponding cable expansion box, and the two middle capillary tubes are arranged at the bottom of the corresponding cable expansion box, and then the laid cables are placed on the corresponding four capillary tubes to realize the bending of the cables in the corresponding cable expansion box, so as to leave a telescopic margin for the hull.

[0013] Beneficial effects of the present invention: The present invention adopts the method of blowing lightweight plastic bags with compressed air, and passes the steel wire rope through the cable pipe on the main deck of the ship to form a closed loop through the traction rope, and is pulled by a winch, thereby realizing the cable laying in the cable pipe on the main deck of the ship, improving the working efficiency and reducing the working burden of on-site staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a top view of the distribution status of the main deck cable pipe, cable expansion box, pulley and winch of the present invention.

[0016] Figure 2 for Figure 1 Medium AA view.

[0017] Among them, 1-main deck cable pipe; 2-pulley; 3-cable expansion box; 4-wire rope; 5-cable; 6-winch; 7-iron rod; 8-thin tube. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below through specific implementation methods.

[0019] A method for laying cables in a cable pipe on a main deck of a ship according to the present invention, Figure 1 As shown, on the main deck of the ship arranged horizontally and transversely, a main deck cable pipe 1 is horizontally arranged along the length direction between the front wall of the living area and the boatswain's room, and cable expansion boxes 3 are also arranged on the main deck cable pipe 1 at equal intervals in sequence along its length direction, thereby dividing the main deck cable pipe 1 into several sections arranged horizontally and coaxially, and the cable expansion boxes 3 are used to reduce the pulling effect of the hull expansion and contraction on the cable 5.

[0020] A method for laying cables in a cable pipe on a main deck of a ship according to the present invention, Figure 1 , Figure 2 As shown, the following steps are included: (1) Through the preparatory work, the steel wire rope 4 forms a closed loop inside and outside the main deck cable pipe 1, and is connected to the drum of the winch 6 in the form of a snap hook, preparing for the subsequent circulation of the cable 5.

[0021] In the above steps, the preparation work for forming a closed loop of the steel wire rope 4 in the cable 5 tube is specifically as follows: (1.1) First, connect one end of the traction rope to a lightweight plastic bag; In addition to the lightweight plastic bag, one end of the traction rope can also be connected to a small parachute.

[0022] (1.2) Then put the lightweight plastic bag into one end of the pipe opening of the corresponding section of the main deck cable pipe 1 on the side of the front wall of the living area.

[0023] (1.3) Then, use compressed air to blow the light plastic bag toward the other end of the corresponding section of the main deck cable pipe 1, and use the light plastic bag to drive the traction rope from one end of the corresponding section of the main deck cable pipe 1 to the other end thereof; The length of the traction rope must be greater than the length of each section of the main deck cable pipe 1 .

[0024] (1.4) Then connect the steel wire rope 4 to the other end of the traction rope, and then pull one end of the traction rope to pass the steel wire rope 4 through the corresponding section of the main deck cable pipe 1 and move it to the corresponding cable expansion box 3.

[0025] (1.5) Then untie the connection between the steel wire rope 4 and the traction rope, and put the lightweight plastic bag into one end of the next section of the main deck cable pipe 1; repeat the above steps (1.3) and (1.4), and pass the steel wire rope 4 through each section of the main deck cable pipe 1 one by one, until the steel wire rope 4 passes through the corresponding section of the main deck cable pipe 1 on the side of the boatswain's room.

[0026] (1.6) Then the base of the winch 6 is welded and fixed on the main deck of the ship at the front side of the main deck cable pipe 1, and pulleys 2 matching the steel wire rope 4 are symmetrically arranged horizontally at the front side of the main deck cable pipe 1 corresponding to the front wall of the living area and the front side of the main deck cable pipe 1 corresponding to the boatswain's room, and it is ensured that the front ends of the two pulleys 2 on the front side are arranged in a straight line with the drum of the winch 6 along the length of the ship; Among them, the fixed ends of the two pulleys 2 on the front wall side of the living area are fixedly installed on the front wall of the living area, and the fixed ends of the two pulleys 2 on the boatswain's room side are fixedly installed on the pillars or hatch coamings behind the cable box 5 in the boatswain's room.

[0027] (1.7) Then, the connection between the steel wire rope 4 and the traction rope is released, and the two ends of the steel wire rope 4 are passed around the corresponding two pulleys 2 in turn. Then, the two ends of the threaded steel wire rope 4 are connected end to end through the cooperation of the shackle and the universal wheel, and the steel wire rope 4 is connected to the drum of the winch 6 in the form of a slipknot, so that the steel wire rope 4 forms a closed loop inside and outside the main deck cable tube 1, and under the drive of the winch 6, the steel wire rope 4 circulates in a ring shape.

[0028] (2) A wire mesh cover is inserted into the end of the cable 5, and the cable 5 is connected to the wire rope 4 through the wire mesh cover.

[0029] (3) Start the winch 6 and slowly pull the steel wire rope 4 to make it move in a circular motion. The steel wire rope 4 drives the cable 5 to pass through the corresponding sections of the main deck cable duct 1 and the cable expansion box 3 in sequence from the front wall side of the living area toward the side of the boatswain's room, thereby completing the laying of the cable 5 in the main deck cable duct 1 of the ship.

[0030] In the above steps, lubricant needs to be applied to the outer skin of the cable 5 before the winch 6 is started, so as to avoid wear caused by friction between the laid cables and the currently laid cables when the cable 5 moves with the wire rope 4 in the main deck cable pipe 1.

[0031] In the above steps, before the winch 6 is started, two smooth iron rods 7 are installed at the head and tail of each cable expansion box 3, and each iron rod 7 is located between the steel wire rope 4 and the cable 5, so that the cable 5 and the steel wire rope 4 are separated in the cable expansion box 3 by the iron rods 7 to prevent the cable 5 and the steel wire rope 4 from being twisted.

[0032] In the above steps, a mark is made on the currently laid cable, and when the cable is laid to the front wall of the residential area at the mark, the winch 6 stops working immediately to prevent the cable 5 from being pulled out too long or not enough.

[0033] In the above steps, four capillary tubes 8 are arranged in parallel and at intervals in sequence in each cable expansion box 3, wherein the two capillary tubes 8 on both sides are arranged above the lower edge of the corresponding cable expansion box 3, and the two middle capillary tubes 8 are arranged at the bottom of the corresponding cable expansion box 3, and then the laid cables are placed on the corresponding four capillary tubes 8 to realize the bending of the cable 5 in the corresponding cable expansion box 3 to leave a telescopic margin for the hull.

[0034] Beneficial effects of the present invention: The present invention adopts the method of blowing lightweight plastic bags with compressed air, and passes the steel wire rope 4 through the cable pipe 1 on the main deck of the ship to form a closed loop through the traction rope, and is pulled by the winch 6, thereby realizing the laying of the cable 5 in the cable pipe 1 on the main deck of the ship, improving the working efficiency and reducing the working burden of the on-site staff.

[0035] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the technical requirements.

Claims

1. A method for laying cables in a cable duct on the main deck of a ship, characterized in that: A main deck cable pipe is horizontally arranged on the main deck of the ship between the front wall of the living area and the boatswain's room in the direction of the ship length, and cable expansion boxes are sequentially and evenly spaced and connected on the main deck cable pipe along its length direction, thereby dividing the main deck cable pipe into several sections arranged horizontally and coaxially, and the cable expansion box is used to reduce the pulling effect of the expansion and contraction of the hull on the cable; The cable laying method includes the following steps: (1) Through preparatory work, the steel wire rope forms a closed loop inside and outside the main deck cable tube, and is connected to the drum of the winch in the form of a slipknot, in preparation for the subsequent circular cable pulling; (2) Put a wire mesh cover on the end of the cable and connect the cable to the wire rope through the wire mesh cover; (3) Start the winch and slowly pull the wire rope to make it move in a circular motion. The wire rope drives the cable from the front wall of the living area toward the boatswain's room through the corresponding sections of the main deck cable duct and cable expansion box, thereby completing the cable laying in the main deck cable duct of the ship.

2. A method for laying cables in a cable duct on the main deck of a ship according to claim 1, characterized in that: In the above step (1), the preparation work for forming a closed loop of the steel wire rope in the cable tube is specifically as follows: (1.1) First, connect one end of the traction rope to a lightweight plastic bag; (1.2) Then put the lightweight plastic bag into one end of the cable conduit of the corresponding section of the main deck near the front wall of the accommodation area; (1.3) Then use compressed air to blow the lightweight plastic bag toward the other end of the corresponding section of the main deck cable pipe, and use the lightweight plastic bag to drive the traction rope from one end of the corresponding section of the main deck cable pipe to the other end; (1.4) Then connect the steel wire rope to the other end of the traction rope, and then pull one end of the traction rope to pass the steel wire rope through the corresponding section of the main deck cable pipe and move it to the corresponding cable expansion box; (1.5) Then untie the connection between the steel wire rope and the traction rope, and put the lightweight plastic bag into one end of the next section of the main deck cable pipe; repeat the above steps (1.3) and (1.4), passing the steel wire rope through each section of the main deck cable pipe one by one, until the steel wire rope passes through the corresponding section of the main deck cable pipe on the side of the boatswain's room; (1.6) The winch base is then welded and fixed on the main deck of the ship at the front side of the main deck cable pipe, and pulleys matching the wire rope are also symmetrically arranged horizontally at the front side of the corresponding section of the main deck cable pipe near the front wall of the living area and the corresponding section of the main deck cable pipe near the boatswain's room, and it is ensured that the front ends of the two pulleys near the front side are arranged in a straight line with the drum of the winch along the length of the ship; (1.7) Then release the connection between the wire rope and the traction rope, pass the two ends of the wire rope around the corresponding two pulleys in turn, and then connect the two ends of the wire rope together through the cooperation of the shackle and the universal wheel, and put the wire rope on the drum of the winch in the form of a slipknot, so that the wire rope forms a closed loop inside and outside the main deck cable tube, and under the drive of the winch, the wire rope moves in a circular shape.

3. A method for laying cables in a cable duct on the main deck of a ship according to claim 2, characterized in that: In the above step (1.1), in addition to the lightweight plastic bag, one end of the traction rope can also be connected to a small parachute.

4. A method for laying cables in a cable duct on a ship's main deck according to claim 2, characterized in that: In the above step (1.3), the length of the towing rope must be greater than the length of each section of the main deck cable duct.

5. A method for laying cables in a cable duct on the main deck of a ship according to claim 2, characterized in that: In the above step (1.6), the fixed ends of the two pulleys on the side of the front wall of the living area are fixedly installed on the front wall of the living area, and the fixed ends of the two pulleys on the side of the boatswain's room are fixedly installed on the pillars or hatch coamings behind the cable box of the boatswain's room.

6. A method for laying cables in a cable duct on a ship's main deck according to claim 1, characterized in that: In the above step (3), lubricant needs to be applied to the outer sheath of the cable before the winch is started, so as to avoid wear caused by friction between the laid cable and the currently laid cable when the cable moves with the wire rope in the cable pipe on the main deck.

7. A method for laying cables in a cable duct on a ship's main deck according to claim 1, characterized in that: In the above step (3), before the winch is started, two smooth iron rods are installed at the head and tail of each cable expansion box, and each of the iron rods is located between the steel wire rope and the cable, so that the cable and the steel wire rope are separated in the cable expansion box by the iron rods to prevent the cable and the steel wire rope from being twisted.

8. A method for laying cables in a cable duct on a ship's main deck according to claim 1, characterized in that: In the above step (3), a mark is made on the currently laid cable, and when the cable is laid from the mark to the front wall of the residential area, the winch stops working immediately to avoid the cable being pulled out too long or not enough.

9. A method for laying cables in a cable duct on a ship's main deck according to claim 1, characterized in that: In the above step (3), four capillary tubes are arranged in parallel and at intervals in each cable expansion box, wherein the two capillary tubes on both sides are arranged above the lower edge of the corresponding cable expansion box, and the two capillary tubes in the middle are arranged at the bottom of the corresponding cable expansion box, and then the laid cables are placed on the corresponding four capillary tubes to realize the bending of the cables in the corresponding cable expansion box, so as to leave a margin for the expansion and contraction of the hull.

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